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Indexed by:Journal Papers

Date of Publication:2018-11-01

Journal:Fusion Engineering and Design

Included Journals:SCIE、CPCI-S、Scopus

Volume:136

Issue:,SI

Page Number:554-557

Key Words:Fuzz; Tungsten; Rough surface; Monte Carlo

Abstract:The fiber form nanostructure of tungsten surface called "fuzz", which degrades the performance of tungsten material, has been observed on linear devices, tokamak and stellarator. We developed a three-dimensional (3D) kinetic Monte Carlo (KMC) code SURO-FUZZ to investigate the formation of fuzzy nanostructure in the micro- and second-scales. The time evolution of fuzz morphology under helium bombardment is studied by SURO-FUZZ. The growth rate of tungsten fuzz shows a good agreement with the experimental results.